Artist Felix Beck created a non-visual graffiti project called Soundbombs, “innocuous-looking 6-inch plastic shells that broadcast short clips (lines from Shakespeare, flatulence, or anything else you record) to unwitting passersby”. He doesn’t sell them, but instead takes applications, and prospective users must tell him where they will use it and how much they’re willing to pay. Get loud.

Stuart Haygarth created the Tide Chandelier out of man made debris that washed up along a stretch of the Kent coastline. “The sphere is an analogy for the moon which effects the tides which in turn wash up the debris”.